Ring inserter for milking-machine teat cups



F. s. SNYDER. RlNG INSERTER FOR MILKING MACHINE TEAT CUPS.

APPLICATION FILED JAN. 4, 1921.

Patented Feb. 28, 1922.

INVE/VTOR Fran/ J Snyder ATTWP/VEY.

. following is. a full,

UNITED" STATES PATENT oFFlcE.

Fm s. 'smrn'mt, or rouenxnnr sm; NEW YORK, Assmiron 'ro 'rnnnn LAVAL snruwron COMPANY, or NEW roam-n. Y., A CORPORATION or NEW messy.

. RING msEnTEn ron MILKING-MAGHINE TEAT curs.

Specification'of Letters Patent. Patented Feb. 28 1922 Application filed January 4,1921. Serial No; 434,38.

To all whom it may concern.

Be it known that I, FRANK S...'SNYDER, a citizen of the. United States, residin .at Pou hkeepsie, county of Dutchess, and tate of ew York, have invented a new useful Ini rovement in Ring Inserters for Milkingachine Teat Cups, of which the clear, and exact .debeing had .to the acscription, reference WlllCl'l form a part companying drawings, ef this specification. The object of my invention is to provide that is usedto expand a part of on s formilking machines.

nited States Patent No. 1,363,522, dated December 28, 1920, to Meredith Leitch, shows a ring removal of the rubber tube with inserter which is eflicient ex cept that the inserted ring from the ring supporter is diliicult; I

. The objector my invention is to provide means that will eiiec'tually support the ring while the tube is being stretched over it and tion of the tube contracted below the ring. In the drawings, which show a ring 'in serter embodying my invention in a r -ferred.f -m;

Fi' 1 is a plan view of one member. of the ring inserter.

Fig. 2 is a side'view of the same member. Fig. 3 is aside view of the pther-member. Fig. 4 is a side view of both members of the insert er, in-connection with a flexible tube (in cross-section) showing the" parts in thev ositions they assume dur ng the first step 0 theprocess of inserting a ring into the tube.

' Fig. 5 is a view, similar to Fig. 4, showing the relation of .the parts during the second step.

Fig...6 is a View, similar to Figs. 4 and 5, showing the relation of parts during the third step.

Fig. '1 shows a tube with the ring in place.

a is a late having several elastic fingers b upstan 'ng therefrom in a frusto-conical relation. 0 1s an enlarged base for a pedestal (2 longer than the fingers b and of a and rings into will be readily removable from the po'r-.

stretcher.

stretching diameter not greatly different from the inside dlameter ofthe tubein which the ring is the pedestal d" are three fingers e having thelr upper portions of a length to fit inslde the ring to be inserted and their lower portions of a greater length to form. a support for the ring. f is one of the-rings to pedestal d and carry the tube down to the position shown in Fig. 5. The tube and r1ng are now llfted off, the fingers 6 turn- .ing up as shown in Fig. 6 permit this to be accomplished easily. As soon as the bottom ofthe tube 9 is above the fingers e, it' assumes the. form shown in Fig. 7. The plate a and fingers b may now be easily reto be inserted. Pivoted in the top of v moved ready for the next tubeand ring.

Having now fully described my invention, whatI claim and desire to protectby Letters Patent is v 1. A device for inserting a ring into an elastic tube comprising,- in combination, means to stretch the tube, and a ring support-adapted to pass the ring through the stretching means into the tube, said support being arranged to permit the stretcher to collapse after the ring has passed the 2. A device for inserting a'ring into an elastic tube,-.comprising, in combination, means to stretch the tube, and a ring support adapted to pass the ring throu h the means into the tube, sai support being collapsible to permit free removal of. the tube with inserted ring.

3'. In a device for carrylng a rigid ring stretching device into a tube,

through a tube means adapted to assume-an in combination,

extended position to support the ring or aretracted positionto prevent resistance tov removal of the tube.

4. In "a device for carrying a rigid ring through a tube stretching device into a tube, in combination, a pedestal and a plurality of normally radial ring supporting fingers adapted to assume positions parallel to the axis of the pedestal during the removal of the tube with its inserted ring.

5. A device for inserting a ring into an elastic tube, comprising a ring supporting and ring inserting member, a tube-stretch-' ing member adapted to be inserted into the end of the tube and to be moved, with the tube, telescopically relatively to the first member and in sugh movement to be expanded to permit 'the entrance of the ring within the tube, and means to contract the diameter of the ring inserter to facilitate the disengagement of the tube and its inserted ring.

6. In a device for inserting a ring into an elastic tube, comprising means to enlarge the diameter of: the tube, a pedestal adapted to be inserted into the tube through said StIGtChlHgQIIIGfiJIS, fingers pivotally carried by the pedestal'and adapted to extend radially thereof in one position and longitudinally thereof in another positiomsaid fingersaffording a ring support in their radial extension and releasing the-ring in their a longitudinal extension.

8; A device for lnserting a ring into an elastic tube, comprising a tube stretching,

member, a pedestal adapted tobe inserted into the tube through'said stretching mem-' I her, a plurality of fingers, having end shoulders, pivotall. secured to said pedestal, said fingers a ording a support for a ring in the operation of inserting the ring and turning on their pivotsin the operatipn of withdrawing the pedestal; thereby'releasing the ring and permitting the free withdrawal of the pedestal from the tube. In testimony of which invention, I have hereunto set my hand, at Poughkeepsie, N. Y., on this 28th day of December, 1920.

FRANK s. SNYDER. 

